Unlock ANY ATT iPhone 4S, 4, 3Gs & 3G on iOS 5.1.1, 5.1, 5.0.1, 5.0 & 4.2.1. Yes this is Permanent and cannot be removed, EVER. It will work on any Blacklisted, Bad ESN or “Gulp” Stolen iPhone. This is by far the best unlock ever made and completely worth the 16 – 20 dollar [...]